Apps · Music

Tuner Pro for Watch

Guitar, Bass, Ukulele, Strings

You are about to play and your phone is across the room, in a bag, or dead. A tuner is the one tool you always need and never have to hand.

What it does

• Chromatic detection using the watch microphone, so any note and any alternate tuning works
• High-contrast display readable on a dark stage or in bright sun
• Works for guitar, bass, ukulele and bowed strings
• No iPhone connection required at any point during use

Do I need my iPhone?

Not while you are using it. This is a standalone watchOS app: it runs on the Apple Watch on its own, with the phone switched off or left behind. You do need an iPhone once, to purchase and install it — that is an App Store rule rather than anything about this app.

Questions

Is the Apple Watch microphone accurate enough to tune with?

For standard tuning at normal playing volume, yes. In a loud room, mute other sources and play a single string firmly - the same thing you would do with any microphone tuner.

Does it need my iPhone nearby?

No, it works standalone. That is the entire point of it.

Can I tune to something other than A440?

It detects notes chromatically, so alternate and drop tunings work without configuration.

Does it work with a clip-on pickup?

No, it listens through the watch microphone. Acoustic sound is what it needs.

I build apps like this for clients too — see what that involves.